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1. 发明公开

EP1991837A2 REDUCED BORE VORTEX FLOWMETER HAVING A STEPPED INTAKE 审中-公开
标题翻译：与阶梯式进气道缩径涡流流量计
公开(公告)号：EP1991837A2
公开(公告)日：2008-11-19
申请号：EP07718173.3
申请日：2007-01-19
申请人： Invensys Systems, Inc.
发明人： LEWICKE, Joseph, J.
IPC分类号： G01F1/20
CPC分类号： G01F1/3209 , G01F15/18
摘要： A reduced bore vortex flowmeter and flowmeter body includes a fluid inlet couplable in series to an upstream portion of a fluid flow conduit. The inlet fairs into a central bore having a transverse cross-sectional dimension less than that of the conduit, and which houses a shedder. The central bore is communicably coupled to a fluid outlet couplable to a downstream portion of the conduit. The inlet has a stepped or structured inner wall, including a first wall portion disposed at first angle to the downstream direction, and a second wall portion disposed at a second angle to the downstream direction. The second angle is greater than the first angle, so that the first and second wall portions form a substantially concave axial cross-section. The stepped intake improves linearity of flow measurements by reducing velocity profile errors and/or extending contracted flow to the shedder over a relatively wide flow range.

2. 发明授权

EP1585943B1 MULTI-MEASUREMENT VORTEX FLOW METER 有权转让
标题翻译：多个测量涡街流量计
公开(公告)号：EP1585943B1
公开(公告)日：2014-10-08
申请号：EP03794523.5
申请日：2003-08-29
申请人： Invensys Systems, Inc.
发明人： COOK, Warren, E. , LEWICKE, Joseph, J. , ALLSTROM, Peter, E. , VIGNOS, James, H.
IPC分类号： G01N31/00
CPC分类号： G05F3/02 , G01F1/3254 , G01F1/86 , G01F15/024 , G01F25/0007 , G01N9/26

3. 发明公开

EP2438404A1 SMALL LINE SIZE VORTEX FLOWMETER 审中-公开
标题翻译： KLEINEANLAGENGRÖSSEFÜRWIRBEL-FLUSSMESSER
公开(公告)号：EP2438404A1
公开(公告)日：2012-04-11
申请号：EP10783792.4
申请日：2010-05-20
申请人： Invensys Systems, Inc.
发明人： LEWICKE, Joseph, J. , BROSNIHAN, Paul, F.
IPC分类号： G01F1/32
CPC分类号： G01F1/3263 , G01F1/3209
摘要： A vortex flowmeter and method includes a conduit for process fluid flow and a shedder disposed within the central bore of the conduit. First and second diaphragms are mounted in inner wall portions of the conduit, on opposite sides of the shedder. A sensor is disposed externally to the conduit, and is coupled to each diaphragm with fill tubes. The diaphragms respond to pressure variations generated by vortex shedding, and transmit pulse trains through the fill tubes to a sensor. The pulse trains, which are substantially out of phase with one another, are effectively synchronized with one another by reversing phase of one pulse train.
摘要翻译：涡流流量计和方法包括用于过程流体流动的管道和设置在管道的中心孔内的脱落器。第一和第二隔膜安装在导管的内壁部分，位于脱落器的相对两侧。传感器设置在导管的外部，并且用填充管耦合到每个隔膜。隔膜响应由涡流脱落产生的压力变化，并将脉冲串通过填充管传输到传感器。基本上彼此不同相的脉冲串通过反转一个脉冲串的相位而有效地彼此同步。

4. 发明公开

EP1585943A3 MULTI-MEASUREMENT VORTEX FLOW METER 有权转让
标题翻译：多测量涡流流量计
公开(公告)号：EP1585943A3
公开(公告)日：2005-11-02
申请号：EP03794523.5
申请日：2003-08-29
申请人： Invensys Systems, Inc.
发明人： COOK, Warren, E. , LEWICKE, Joseph, J. , ALLSTROM, Peter, E. , VIGNOS, James, H.
IPC分类号： G01N31/00

5. 发明公开

EP1585943A2 MULTI-MEASUREMENT VORTEX FLOW METER 有权转让
标题翻译： MEHRFACHMESSUNGS-VORTEX-STRÖMUNGSMESSER
公开(公告)号：EP1585943A2
公开(公告)日：2005-10-19
申请号：EP03794523.5
申请日：2003-08-29
申请人： Invensys Systems, Inc.
发明人： COOK, Warren, E. , LEWICKE, Joseph, J. , ALLSTROM, Peter, E. , VIGNOS, James, H.
IPC分类号： G01F1/00
CPC分类号： G05F3/02 , G01F1/3254 , G01F1/86 , G01F15/024 , G01F25/0007 , G01N9/26
摘要： Two-wire transmitters are described in which the required voltage that a control room must supply to the transmitter is lower at high current than at low current, thus freeing up more voltage for other uses, and in which a constant set of operating voltages may be maintained. A corrected pressure in a vortex flow meter may be determined that reflects the mass flow rate. Thus, the mass flow rate may be determined based on the corrected pressure reading and a measured volumetric flow rate. Density may be determined from pressure and temperature using a table containing error values based on a standard density determination and a relatively simple approximation. During operation of a flow meter, the stored error values may be linearly interpolated and the approximation may be computed to determine the density from the stored error value.
摘要翻译：描述了两线制变送器，其中控制室必须提供给变送器的所需电压在高电流下低于低电流，从而释放更多的电压用于其他用途，并且其中一组恒定的工作电压可以是保持。可以确定反映质量流量的涡流流量计中的校正压力。因此，质量流量可以基于校正的压力读数和测量的体积流量来确定。可以使用包含基于标准密度测定和相对简单近似的误差值的表从压力和温度确定密度。在流量计的操作期间，存储的误差值可以被线性内插，并且可以计算近似值以从存储的误差值确定密度。

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